Mechanical movement



Feb. 2, 1932. A. ANDREWS 1,843,330

MECHANICAL MOVEMENT Filed Feb 25, 1951 4 Sheets-Sheet i "MINIM M. I

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Feb. 2, 1932. A. ANDREWS 1,843,380

MECHANICAL MOVEMENT Filed Febl 25, 1931 4 Sheets-Sheet 2 Feb. 2, 1932.A. ANDREWS 1,843,380

MECHANICAL MOVEMENT Filed Feb. 25; 1951 4 Sheets-Sheet 3 lflllllllllllIHHIIIII IN VEN TOR.

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Feb. 2, 1932. A. ANDREWS 1,843,380

MECHANICAL MOVEMENT Fil'd Feb. '25, 1951 I 4 Sheets-Sheet 4 wt mwbuwmWomaqo.

or 11 U Patented Feb. 2, 1932 FATENT OFFKIE ALBERT ANDREWfibF'DEADUOOD,SOUTH DAKOTA MEonAnioAL MOVEMENT Application filed February 25, 1931.Serial No. 518,191. r

The invention relates to mechanical move-.

ments for converting reciprocatory into rotary motion or vice versa, andwhile it is herein disclosed for transmitting motion from pistons to ashaft, it is to be understood that i it is not restricted to anyparticular field of use. 1

One object of the invention is to provide a new and improvedconstruction and relation of elements for smoothly convertingreciprocatory into rotary motion or vice versa, embodying reciprocatorymembers transverse to the shaft.

Another object of the invention is to prowell adapted for use in themanufacture of engines having cylinders ranging in number from one toeight.

lVith the foregoing in view, the invention resides in the novel subjectmatter hereinafter described and claimed, description be ingaccomplished by reference to the accompanying drawings. 7

Fig. 1 is a side elevation partly in vertical section. 1

Fig. 2 is a horizontal sectional view substantially 011 line 2-2 of Fig.1, parts'however being in elevation. I c

Fig. 3 is a vertical transverse sectional View substantialy on line 3-3of Fig. 1.

Fig. 4 is a perspective view of the lever embodied in Figs. 1, 2 and 3.

Fig. 5 is a side elevation partly broken away and in section, showing adifferent form of construction.

Fig. 6 is a horizontal sectional view substantially on line 66 of Fig.5. c

Fig. 7 is a perspective view of the lever shown in Figs. 5 and 6. so

elevation showing a lever in the form of a hollow casing, for a four oreight cylinder engine or the like.

Fig. 9 is a horizontal sectional view on line 99 of Fig. 8.

Fig. 10 is a view similar to Fig. 8 but showing the construction usedfor a two cylinder engine or the like.

Fig. 11 is a-hor1zonta1 sectionalview on line 11 11 of FigJlO.

- vide an advantageous construction which is the Wobbler 18, and is alsoconnected with Fig. 8 is a vertical sectional view partly in Fig. 12 isa perspective view similar to Fig. 7 but showing a lever adapted for atwo cylinder engine or the like instead of four.

In the form of construction shown in Figs.

1 to 41, the numeral 15 denotesa shaft mount ed in appropriate bearings16 and having a fiy-wheel 17. An annular wobbler 18 circumscribes theshaft 15 and the latter is provided wlth means for wobbling saidWobbler. A ball 19 or a central section of a ball is either secured toor integral with the shaft 15 and is provided with continuous ball races20 in planes oblique to said shaft. Bearing balls 21 are engaged withthese'races and with other races 22 in the Wobbler 18. While two sets ofballs and races are shown, any desired number of sets could of course beused. In fact, the gist of the present invention is not concerned withany particular means for connecting the Wobbler operatively with theshaft.

For illustrative purposes, two fixed supports 23 are shown spacedoutwardly in opposite directions from the shaft 15 and the wobbler 18.In an engine, compressor or the like, the equivalents of these supports23 may be formed by opposite walls ofa crank case or the like. 7 A novellever member 24 is mounted on the supports 23, is connected with fourpiston rods or connecting rods 25. Two of these rods are at one side ofthe shaft 15 and two at the other side thereof, and two of said rods arespaced in one direction from the fulcrum axis of the lever 24:, whilethe other two are spaced in the opposite direction from said axis. Whenconstructing a four cylinder engine or the like, all of the rods 25 Willextend in the same direction, as shown. and will be connected with thepistons 26 of the four cylinders 27 In constructing an eight cylindermachine, in addition to extending four of the rods 25 in the directionherein shown, four more would be extended in the opposite direction andconnected with the pistons of additional cylinders.

The lever 24 embodies two opposed, elongated side portions28 and anarched connecting portion 29 whose ends are integral with the centralportions of said side portions 1 32 with said periphery of the Wobbler.This pivot 32 is positionedradially of the web blcr 18 and is at 90 tothe line 31, being disposed cent-rally between the fulcra'30. The endsof the lever portions 28 are connected by pivots 33 with the rods 25 orother reciprocatory members, said pivots 33 being all parallel with theline 31.

Reciprocation of the rods or the like 25 and the described connectionsbetween these I rods and the shaft 15, produce rotation of the latter.As the rods reciprocate and the shaft rotates, the entire lever 24simply oscillates about its fulcra 30, and as the Wobbler 18 wobbles, itoscillates about the pivot 32. In

' an engine, each time a cylinder fires, movement is imparted to thelever 24, this lever causes lateral movement of the pivot 32 and saidpivot causes movement of the Wobbler 18, and the connections betweenthis Wobbler t and. the shaft 15, effect rotation of the latter.

Obviously, in a pump or compressor, driving of the shaft would effectreciprocation of the rods or the like 25.

In the construction shown in F igs. 5, 6 and 7, the shaft is denoted at15", said shaft having an oblique portion 19* rotatable in a hearing 2Owith which a wobbler 18 is provided. This Wobbler could be used with thelever 24 above described, but is preferably employed in connection witha somewhat different lever 24. In addition to embodying two side members28 and an arched connecting member 29, the lever 24 embodies a lowercurved connecting member 29. The member 29 is connected by pivot 32 withthe upper end of the wobbler 18, and the lower end of said Wobbler 18 isconnected by a pivot 32 with the lever portion 29. The lever portions 28are centrally fulcrumed at 30 and are pivoted to the reciprocatory rodsor the like and the relation of fulcrum and pivots, is the same as abovedescribed in connection with Figs. 1 to 4.

The form of construction shown in Figs.

5 to 7 operates in the same manner as that shown in connection withFigs. 1 to 4, the differences being in the form of the wobbler, itsconnection with the shaft, the construction of the lever 24, and itsdouble-pivot connection with the Wobbler.

In Figs. 8, 9, 10 and 11, the lever for connection with the rods orother reciprocatory members and the wobbler, is in the form of a casing246, said casing being preferably of spherical form and constructed fromtwo flanged sections secured together by bolts 01' rivets 35. Thespherical lever 24" contains the Wobbler 18 which wobbler is pivoted atdiametrically opposite points to said member 24 by axially alined pivots32 Member 24 is fulcrumed at and is pivoted at 33 to the rods or thelike 25 (Figs. 8 and 9) or may be pivoted at 33 to the rods or the like25 (Figs. 10 and 11). Four of the rods 25 are shown, all extending inthe same directionbut fourmore could also be employed extending in theopposite direction. Two of the rods 25 are illustrated and they areconnected at points above the shaft 15". The member 24 in each instanceis provided with slots 36 through which the shaft passes. In Figs. 8and9, the pivots 33 are at opposite sides ofthe slots 36 and aboutcentrally between the ends of the latter, whereas in Figs. 10 and 11,the pivots 33 are at the upper ends of said slots.

Fig. 12 discloses a lever member .24 sim ilar to that shownin Figs. 5, 6and 7.. The side members .28 of the lever however, are integrallyconnected at their ends by. arched end members 37 to which the rods orother reciprocatory members may be connected.

Any form of construction herein, illustrated, will be efficient anddesirable from numerous standpoints, but it isto be understood that theinvention .is not restricted to specific details, nor to use in anyparticular field.

I claim 1. A mechanical movement comprising a shaft, fixed supportsdisposed at opposite sides of said shaft and spaced therefrom, a wobblerbetween said supports, means on said shaft for wobbling said Wobbler, aunitary lever having opposed portions between said supports and theperiphery of said Wobbler, and another portion extending between saidopposed portions and lying at the periphery of the Wobbler, two alinedfulcra connecting said opposed lever portions with said supports, saidfulcra being disposed on a line extending diametrically through saidshaft, a pivot extending radially of said Wobbler and connecting theperiphery of the latter with said other lever portions, said pivot beingat ninety degrees to the aforesaid diametrical line, a reciprocatory member transverse to said shaft, and an additional pivot parallel with andspaced longitudinally'of the shaft from said diametrical line, saidadditional pivot connecting said reciprocatory member with said lever.

2. A mechanical movement comprising a shaft, fixed supports disposed atopposite sides of said shaft and spaced therefrom, a Wobbler betweensaid supports, means on said shaft for wobbling said Wobbler, a unitarylever having opposed portions between said supports and the periphery ofsaid Wobbler, and another portion extending between said opposedportions and lying at the periphery of the Wobbler, two alined fulcraconnecting said opposed lever portions with said supports, said fulcrabeing disposed on a line extending diametrically through said shaft, apivot extending radially of said Wobbler and connecting the periphery ofthe latter with said other lever portion, said pivot being at ninetydegrees to the aforesaid diametrical line, four substantially parallelreciprocatory members transverse to said shaft and disposed two at oneside of the latter and two at the other side thereof, two of saidreciprocatory members being at one side of said diametrieal'line and twoat the other side thereof, and four pivots parallel. with saiddiametrical line and connecting said reciprocatory members with saidlever.

3. A mechanical movement comprising a shaft, fixed supports disposed atopposite sides of said shaft and spaced therefrom, a Wobbler betweensaid supports, means on said shaft for wobbling said Wobbler, a unitaryeasing surrounding said Wobbler, said wobbling means and a portion ofsaid shaft and having slots through which the latter passes, said casingextending between said wobbler and said supports, two alined fulcraconnecting said casing with said supports, said fulcra being disposed ona line extending diametrically through said shaft, a pivot extendingradially of said Wobbler and connecting said Wobbler with said casing,said pivot being at ninety degrees to the aforesaid diametrioal line, areciprocatory member transverse to said shaft, and an additional pivotparallel with and spaced longitudr nally of the shaft from saiddiametrical line,

said additional pivot connecting said casing I with said reciprocatorymember.

4. A mechanical movement comprising a shaft, fixed supports disposed atopposite sides of said shaft and spaced therefrom, a wobbler betweensaid supports, means on said shaft for wobbling said Wobbler, a unitarylever having two opposed elongated portions interposed between saidWobbler and said supports and an arched portion extending from thecenter of one of said elongated portions to the center of the other ofsaid elongated portions, two alined fulcra connecting said centers ofsaid elongated portions to said supports, said fulcra being disposed ona line extending diametrically through said shaft, a pivot connectingthe center of said arched lever portion with the periphery of saidWobbler, and four reciprocatory members transverse to said shaft andpivoted to the ends of said elongated lever portions.

5. A mechanical movement comprising a shaft, fixed supports disposed atopposite sides of said shaft and spaced therefrom, a Wobbler betweensaid supports, means on said shaft for wobbling said obbler, a unitarylever having two opposed elongated portions interposed between saidsupports and said Wobbler, a central arched portion connecting thecentral portions of said elongated portions, and two additional archedportions connecting the ends of said elongated portions, two alinedfulcra connecting said centers of said elongated portions to saidsupports and disposed on a line extending diametrically through saidshaft, a pivot connecting the center of said central arched portion withsaid Wobbler, and two reciprocatory members transverse to said shaft andpivoted to said additional arched portions respectively.

In testimony whereof I affix my signature.

ALBERT ANDREWS.

